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<a href='https://github.com/akkartik/mu/blob/master/067random.cc'>https://github.com/akkartik/mu/blob/master/067random.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L2" class="LineNr"> 2 </span>REAL_RANDOM<span class="Delimiter">,</span>
<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"real-random"</span><span class="Delimiter">,</span> REAL_RANDOM<span class="Delimiter">);</span>
<span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L6" class="LineNr"> 6 </span><span class="Normal">case</span> REAL_RANDOM: <span class="Delimiter">{</span>
<span id="L7" class="LineNr"> 7 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L8" class="LineNr"> 8 </span><span class="Delimiter">}</span>
<span id="L9" class="LineNr"> 9 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L10" class="LineNr">10 </span><span class="Normal">case</span> REAL_RANDOM: <span class="Delimiter">{</span>
<span id="L11" class="LineNr">11 </span> <span class="Comment">// todo: limited range of numbers, might be imperfectly random</span>
<span id="L12" class="LineNr">12 </span> <span class="Comment">// todo: thread state in extra ingredients and products</span>
<span id="L13" class="LineNr">13 </span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L14" class="LineNr">14 </span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>rand<span class="Delimiter">());</span>
<span id="L15" class="LineNr">15 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L16" class="LineNr">16 </span><span class="Delimiter">}</span>
<span id="L17" class="LineNr">17 </span>
<span id="L18" class="LineNr">18 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L19" class="LineNr">19 </span>MAKE_RANDOM_NONDETERMINISTIC<span class="Delimiter">,</span>
<span id="L20" class="LineNr">20 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L21" class="LineNr">21 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"make-random-nondeterministic"</span><span class="Delimiter">,</span> MAKE_RANDOM_NONDETERMINISTIC<span class="Delimiter">);</span>
<span id="L22" class="LineNr">22 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L23" class="LineNr">23 </span><span class="Normal">case</span> MAKE_RANDOM_NONDETERMINISTIC: <span class="Delimiter">{</span>
<span id="L24" class="LineNr">24 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L25" class="LineNr">25 </span><span class="Delimiter">}</span>
<span id="L26" class="LineNr">26 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L27" class="LineNr">27 </span><span class="Normal">case</span> MAKE_RANDOM_NONDETERMINISTIC: <span class="Delimiter">{</span>
<span id="L28" class="LineNr">28 </span> srand<span class="Delimiter">(</span>time<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L29" class="LineNr">29 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L30" class="LineNr">30 </span><span class="Delimiter">}</span>
<span id="L31" class="LineNr">31 </span>
<span id="L32" class="LineNr">32 </span><span class="Comment">// undo non-determinism in later tests</span>
<span id="L33" class="LineNr">33 </span><span class="Delimiter">:(before "End Reset")</span>
<span id="L34" class="LineNr">34 </span>srand<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
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